[GHC] #6147: GeneralizedNewtypeDeriving should fail with data families

[GHC]

#6147: GeneralizedNewtypeDeriving should fail with data families
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    Reporter:  rl                       |       Owner:  simonpj                    
        Type:  bug                      |      Status:  new                        
    Priority:  high                     |   Milestone:  7.8.1                      
   Component:  Compiler (Type checker)  |     Version:  7.2.1                      
    Keywords:                           |          Os:  Unknown/Multiple           
Architecture:  Unknown/Multiple         |     Failure:  GHC accepts invalid program
  Difficulty:  Unknown                  |    Testcase:                             
   Blockedby:                           |    Blocking:                             
     Related:                           |  
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Changes (by bgamari):

 * cc: bgamari@… (added)


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6147#comment:4>
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